I'm hooking up a ceiling fan where an old light fixture used to be.
When I pulled the coiled wiring out of the top of the box so I could go about reinforcing it, I noticed something strange about the existing wiring.
There were TWO lines running into the box. From these, one line's black wire was connected to the other's white! Also, the light's black was from one line and the white from the other. The grounds were twisted together.
I don't understand this. There is only one switch and one fixture in the room. The switch activates the one fixture and there are no other connections that I know of.
Why would this be done? What should I do?
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